Schedule A. Description of premises (to be attached). NYC Real Estate Purchase Contracts can be far more complex than the standardized purchase forms used in other states.This request form should be used for properties that are not currently in HPD's Development pipeline. Required Items for All Requests. (i) the Deed for the Seller's Property in a form reasonably acceptable to Purchaser;. (ii) New York State Transfer Tax Returns on Forms TP-584 and RP-5217;.